AU7054291A - Method for the detection of plants - Google Patents
Method for the detection of plantsInfo
- Publication number
- AU7054291A AU7054291A AU70542/91A AU7054291A AU7054291A AU 7054291 A AU7054291 A AU 7054291A AU 70542/91 A AU70542/91 A AU 70542/91A AU 7054291 A AU7054291 A AU 7054291A AU 7054291 A AU7054291 A AU 7054291A
- Authority
- AU
- Australia
- Prior art keywords
- pigeonhole
- radiation
- plants
- plant
- planting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N21/6456—Spatial resolved fluorescence measurements; Imaging
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/02—Receptacles, e.g. flower-pots or boxes; Glasses for cultivating flowers
- A01G9/029—Receptacles for seedlings
- A01G9/0299—Handling or transporting of soil blocks or seedlings
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N2021/635—Photosynthetic material analysis, e.g. chrorophyll
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Description
Method for the detection of plants
The invention relates to growing plants in
* honeycombs, in which there are several pigeonholes for 5 the plants. The invention relates to method and
* equipment for identifying plants qualified to be planted and for separating them from those unsuitable.
Today plants are generally grown in balls in honeycombs, in which there is a separate pigeonhole
10 to be found for each plant. After initial growing plants are then planted into their actual site, e.g. in the open or in bigger pots.
Also automatic equipment for transferring and planting the plants from honeycombs have been deve-
15 loped. In order to be able to use the area available most effectively, planting of empty balls or balls containing dead plants should be avoided. The actual mechanical replacing of a ball in a honeycomb with a new one is in principle quite easy to automatize. The
20 problem is, however, how to identify automatically the balls to be replaced.
The objective of this invention is to create a system, with which the balls containing no plants can be automatically identified in honeycombs containing
25 plants to be planted. This objective will be achieved by means described in independent claims. Some of the embodiments of the invention are described in depend¬ ent claims.
According to the invention excitation radiation
30 is directed to each pigeonhole, which radiation stimulates a living plant to fluoresce. The possible fluorescence radiation is proven by a detector. In
1 case in a pigeonhole there is no fluorescence to be found or its quantity is beneath a certain value, the
35 ball in question can be removed and replaced by a new
CORRECTED
one containing a plant qualified to be planted.
In the following an embodiment of the invention will be described in more detail. Fig. l is a side view of the identification of plants by fluorescence according to the invention in schematical representa¬ tion.
Honeycomb 1 contains several rows of pigeon¬ holes. The pigeonholes are filled with substrate and in each ball thus created there is a seed sowed. After growing the plants 2 with their substrate balls are transferred from the honeycomb and planted.
In the ideal case there is a living plant 2 in each pigeonhole. But in practice there are, however, always also empty balls or balls containing dead plants to be found.
According to the invention light is directed to each ball from the top from the light source 3 at wavelength range of approx. under 550 nm, most con¬ venient wavelength range of approx. 300-550 nm. This light acts as excitation radiation for certain pig¬ ments of a living plant, especially for chlorophyll, and stimulates them to emit fluorescence radiation at wavelength range over approx. 550 nm, especially at range over approx. 600 nm. The possible fluorescence radiation coming from each ball is detected by a camera 4 (e.g. video camera). In front of the camera there is a filter 5, which lets through only over approx. 550 nm (or over approx. 600 nm) radiation. By the described method it is essential, that the light of the light source 3 excitates fluorescence strong enough for picture formation and that the radiation of the light source reflected directly from the plant or the substract does not reach the camera 4. Thus the fluorescence radiation emitted by the
chlorophyll of living plants is clearly to be seen in the picture, which radiation is not emitted by the background or dead plants, and thus the balls un¬ qualified for planting can be separated. A signal coming from the camera 4 is digitized into the computer 6. The picture is segmented, i.e. areas indicating the same target are separated e.g. by a simple threshold procedure, whereby targets darker than certain grey scale value are set black and those lighter are set white. The surface area and border line corresponding the area of the plant can easily be separated from the picture made by threshold procedure by using methods of digital graphics.
The honeycomb 1 is placed in relation to the light source 3 and the camera 4 in a manner, that each pigeonhole can be inspected. In case there is no fluorescent plant at all or in regard to its surface area insufficiently fluorescent plant, the pigeonhole in question is registered as empty into the computer. Information received can be used in the automatic machine replacing the balls, whereby each empty ball is removed and replaced by a new one containing a living plant.
Claims (4)
1. Method for identifying and separating plants qualified for planting, which plants are placed each in its own separate pigeonhole in a honeycomb contain- ing several of these pigeonholes, c h a r a c t e r ¬ i z e d in that excitation radiation is directed to each pigeonhole, which radiation stimulates a pigment of a living plant to fluoresce, the fluorescence radiation coming from each pigeonhole is detected and identified, that there is a plant qualified for planting in a pigeonhole, in case the fluorescence radiation detected from the pigeonhole exceeds a certain value.
2. Method as set forth in claim 1, c h a r - a c t e r i z e d in that the wavelength range of the excitation radiation is beneath approx. 550 nm.
3. Method as set forth in claim 1 or 2, c h a r a c t e r i z e d in that fluorescence radiation is detected, the wavelength of which is over approx. 550 nm, preferably over approx. 600 nm.
4. Equipment for identifying and separating plants qualified for planting, which plants are placed each in its own separate pigeonhole in a honeycomb containing several of these pigeonholes, c h a r - a c t e r i z e d in that the equipment consists of radiation source (3) for transmitting excitation radiation to each pigeonhole containing a plant, which radiation stimulates a pigment of a living plant to fluoresce, and of facilities (4, 5) for detecting and handling the fluorescence radiation coming from each pigeonhole.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI900134 | 1990-01-10 | ||
FI900134A FI900134A (en) | 1990-01-10 | 1990-01-10 | FOER IDENTIFIERING AV PLANTOR. |
Publications (1)
Publication Number | Publication Date |
---|---|
AU7054291A true AU7054291A (en) | 1991-08-05 |
Family
ID=8529674
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU70542/91A Abandoned AU7054291A (en) | 1990-01-10 | 1991-01-09 | Method for the detection of plants |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0462251A1 (en) |
JP (1) | JPH04504804A (en) |
AU (1) | AU7054291A (en) |
CA (1) | CA2047670A1 (en) |
FI (2) | FI900134A (en) |
HU (1) | HUT63730A (en) |
NO (1) | NO913555L (en) |
WO (1) | WO1991010352A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994000976A1 (en) * | 1992-07-01 | 1994-01-20 | Colin Herbert Salmond | Improved crop |
AU651549B3 (en) * | 1992-07-01 | 1994-07-21 | Peter John Mcgruddy | A process for reducing strawberry plant losses |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5406089A (en) * | 1989-10-16 | 1995-04-11 | Photonucleonics Ndt, Inc. | Phytoluminometer |
LU90186B1 (en) * | 1997-12-22 | 1999-06-24 | Communaute Europ Ce Batiment E | Device for non-destructive analysis of plants and vehicle comprising such an on-board device |
US6073564A (en) * | 1998-04-21 | 2000-06-13 | Lannen Tehtaat Oy | Method and device for improving the transplanting of seedlings |
US6701665B1 (en) * | 2000-10-23 | 2004-03-09 | Phytech Ltd. | Remote phytomonitoring |
US20170311553A1 (en) * | 2016-05-02 | 2017-11-02 | Sensor Electronic Technology, Inc. | Ultraviolet Plant Illumination System |
JP7058816B1 (en) * | 2022-02-14 | 2022-04-22 | 株式会社レフ・テクノロジー | Optical detection device and system equipped with the optical detection device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL63053A0 (en) * | 1981-06-05 | 1981-09-13 | Yeda Res & Dev | Device and method for measurement of photosynthetic activity by photoacoustic spectroscopy |
DE3518527A1 (en) * | 1985-05-23 | 1986-11-27 | Ulrich 8700 Würzburg Schliwa | Pulse-based fluorometer |
SE8602011D0 (en) * | 1986-04-30 | 1986-04-30 | Roland Wass | DEVICE FOR SEATING PHOTOSYNTHESIS EFFECTIVENESS OF VEGAS |
-
1990
- 1990-01-10 FI FI900134A patent/FI900134A/en not_active Application Discontinuation
-
1991
- 1991-01-09 AU AU70542/91A patent/AU7054291A/en not_active Abandoned
- 1991-01-09 EP EP91901799A patent/EP0462251A1/en not_active Withdrawn
- 1991-01-09 JP JP3502238A patent/JPH04504804A/en active Pending
- 1991-01-09 CA CA002047670A patent/CA2047670A1/en not_active Abandoned
- 1991-01-09 WO PCT/FI1991/000009 patent/WO1991010352A1/en not_active Application Discontinuation
- 1991-09-09 FI FI914249A patent/FI914249A0/en not_active Application Discontinuation
- 1991-09-09 HU HU912907A patent/HUT63730A/en unknown
- 1991-09-10 NO NO91913555A patent/NO913555L/en unknown
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1994000976A1 (en) * | 1992-07-01 | 1994-01-20 | Colin Herbert Salmond | Improved crop |
AU651549B3 (en) * | 1992-07-01 | 1994-07-21 | Peter John Mcgruddy | A process for reducing strawberry plant losses |
Also Published As
Publication number | Publication date |
---|---|
FI900134A (en) | 1991-07-11 |
FI914249A0 (en) | 1991-09-09 |
FI900134A0 (en) | 1990-01-10 |
NO913555D0 (en) | 1991-09-10 |
EP0462251A1 (en) | 1991-12-27 |
CA2047670A1 (en) | 1991-07-11 |
HUT63730A (en) | 1993-10-28 |
HU912907D0 (en) | 1992-01-28 |
NO913555L (en) | 1991-09-10 |
WO1991010352A1 (en) | 1991-07-25 |
JPH04504804A (en) | 1992-08-27 |
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